A daughter of 1911 Two Thousand Guineas and Derby Stakes winner Sunstar, Sunbonnet was talented enough to be considered the top American 3-year-old filly in a less than outstanding division. She had little opportunity to capitalize on any potential she had as a broodmare as she produced only one known foal.

Race record

Unavailable

1916:

2nd Fort Thomas Handicap (USA, 6FD, Latonia)

1917:

Won Kentucky Oaks (USA, 8.5FD, Churchill Downs)

Won Alabama Stakes (USA, 10FD, Saratoga)

Won Roslyn Handicap (USA, 8.5FD, Aqueduct)

2nd Baltimore Handicap (USA, 8.5FD, Laurel)

3rd Bowie Handicap (USA, 12FD, Pimlico)

Honors

American champion 3-year-old filly (1917)

As an individual

A bay mare; no further information available.

As a producer

Sunbonnet's only known foal was the stakes-placed Maintenon colt Sun God II.

Connections

Sunbonnet was bred in England by Jack Joel. She was imported to the United States and raced in the colors of A. K. Macomber. She was sent to France in 1919. There is no further record of her after the birth of Sun God II in 1922.

Marian Hood, the dam of Sunbonnet, is a half sister to the good English stakes winner and five-time English champion sire Polymelus (by Cyllene), English stakes winner Ercildoune (by Kendal) and Grafton (by Galopin), who never raced but was champion sire in Australia four times. Marian Hood is also a half sister to Lady Cynosure, third dam of 1940 Derby Stakes winner Pont l'Eveque.

Marian Hood is out of the Hampton mare Maid Marian, a half sister to multiple English Classic winners Memoir and La Fleche (both by St. Simon). The last-named mare is the dam of stakes winners Baroness La Fleche (by Ladas), dam of One Thousand Guineas winner and influential producer Cinna (by Polymelus), and John o' Gaunt (by Isinglass), sire of 1910 St. Leger Stakes winner and 1923 English leading sire Swynford. Maid Marian's dam Quiver (by Toxophilite) also produced juvenile stakes winner Satchel (by Galopin), dam of the good juvenile The Prize (by Bend Or) and second dam of Sain, a sire of some significance in the United States.